We propose a preconditioner based on the block diagonal matrices of SFVEM discretization system of 2-D three temperature radiation heat conduction equations.

• 在三角形剖分下，针对二维三温辐射热传导方程组的SFVEM离散系统，设计了一类基于块对角逆的预条件，给出了条件数的理论估计式。